Airtightness detection mistake proofing device
By introducing locking components, including a pressing mold and a clamping plate, into the airtightness testing device, the problem of air leakage caused by shaking during the testing of tubular products is solved, achieving higher testing accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO DOUBLE HONG YUAN AUTOMATION EQUIP CO LTD
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-28
AI Technical Summary
During the airtightness testing of tubular products, the entry of gas can cause instability in the product, making it prone to shaking and leakage, which affects the accuracy of the test.
An airtightness detection error prevention device was designed, which includes a locking component, including a pressing mold and a clamping plate. The pressing mold makes close contact with the port of the tubular product, and the clamping plate fixes both ends to enhance stability.
It effectively prevents tubular products from shaking during the testing process, improving the accuracy of airtightness testing.
Smart Images

Figure CN224176011U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of airtightness testing technology, specifically an airtightness testing error prevention device. Background Technology
[0002] Air tightness testing is a method used to detect whether there is a gas leak in an object or system. It is widely used in industries such as new energy, home appliances, auto parts, consumer electronics, medical devices, security lighting, valves and pipes, and wire connectors to ensure that products are free from defects such as water or gas leaks. During the testing process, an equal amount of air is introduced into the tubular product, the pressure is stabilized, and the changes in gas pressure and volume are detected to calculate the leakage rate and leakage value.
[0003] During the testing of tubular products, the large amount of gas entering the tubular product can cause instability in the pressure, which can easily lead to shaking and leakage, thus affecting the accuracy of the airtightness test.
[0004] To address the aforementioned issues, we propose an airtightness testing and error prevention device. Utility Model Content
[0005] To address the problems in the background art, this utility model provides an airtightness detection error prevention device.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] An airtightness detection error prevention device includes a base and an airtightness detection module installed on the upper right side of the base. A locking component is provided on the upper left side of the base. The locking component includes a support base. A detection socket is provided in the upper center of the support base. Clamping plates are provided on both sides of the upper end of the detection socket. The two sets of clamping plates are symmetrically distributed and are driven by a push cylinder. A pressing mold is provided in the upper center of the detection socket. A lifting cylinder is provided on the top of the pressing mold. The lifting cylinder is used to drive the pressing mold to move up and down.
[0008] Preferably, an elastic component is provided between the lifting cylinder and the pressing mold. The elastic component includes a sleeve, which is fixedly installed at the bottom center of the output end of the lifting cylinder. A spring is provided in the inner center of the sleeve, and a movable rod is connected to the bottom of the spring. The top of the movable rod is slidably installed in the inner center of the sleeve, and the pressing mold is fixedly installed in the bottom center of the movable rod.
[0009] Preferably, an elastic sealing ring is provided on the inner bottom of the detection socket, and an air tube is provided at the bottom center of the detection socket, the air tube being connected to the airtightness detection module.
[0010] Preferably, the clamping plate is configured with an arc-shaped structure, and an anti-slip pad is installed on the clamping surface of the clamping plate.
[0011] Preferably, both sets of the push cylinders are fixedly installed on the upper surface of the support base and are respectively located on both sides of the detection socket.
[0012] Preferably, a top plate is installed at the upper middle part of the support base via a diagonal brace, and the lifting cylinder is fixedly installed at the upper middle part of the top plate.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This solution incorporates a locking component on the testing port, including a pressing mold and two sets of clamping plates. The pressing mold presses down on the top of the tubular product, ensuring tight contact between the end of the tubular product and the elastic sealing ring at the bottom. The two sets of clamping plates then clamp and fix both ends of the tubular product, effectively limiting and locking it. This enhances the stability of the tubular product during testing, prevents errors, and improves the accuracy of airtightness testing. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a side sectional view of the present invention;
[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0018] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle.
[0019] In the diagram: 1. Base; 2. Air tightness detection module; 3. Support base; 4. Detection socket; 5. Clamping plate; 6. Push cylinder; 7. Elastic sealing ring; 8. Air pipe; 9. Lifting cylinder; 10. Sleeve; 11. Movable rod; 12. Spring; 13. Pressing mold; 14. Top plate. Detailed Implementation
[0020] The technical solution in this application embodiment is to solve the problems of the background technology mentioned above. The overall idea is as follows: The main technical solution is to set a locking component on the detection socket 4, including a pressing mold 13 and two sets of clamping plates 5. During the detection process, the top of the tubular product needs to be pressed by the pressing mold 13 so that the port of the tubular product is in close contact with the elastic sealing ring 7 at the bottom. Then, the two sets of clamping plates 5 are used to clamp and fix the two ends of the tubular product, thereby further enhancing the stability of the tubular product during detection and playing a role in preventing errors. Then, the air tightness detection module 2 is activated to deliver gas into the tubular product for detection, thereby effectively enhancing the accuracy of air tightness detection.
[0021] Example: Refer to Figures 1-4 As shown, an airtightness detection error prevention device of this embodiment includes a base 1 and an airtightness detection module 2 installed on the upper right side of the base 1. A locking component is provided on the upper left side of the base 1. The locking component includes a support base 3. A detection socket 4 is provided in the middle of the upper end of the support base 3. Clamping plates 5 are provided on both sides of the upper end of the detection socket 4. The two sets of clamping plates 5 are symmetrically distributed and are driven by a push cylinder 6. The two sets of push cylinders 6 are fixedly installed on the upper surface of the support base 3 and are respectively provided on both sides of the detection socket 4. By driving the push cylinders 6, the clamping plates 5 move horizontally. When the two sets of clamping plates 5 move towards the center at the same time, the tubular product installed in the detection socket 4 is clamped and fixed at both ends.
[0022] Furthermore, a pressing mold 13 is provided at the upper middle part of the detection socket 4, and a lifting cylinder 9 is provided at the top of the pressing mold 13. The lifting cylinder 9 is used to drive the pressing mold 13 to move up and down. By pushing the pressing mold 13 with the lifting cylinder 9, the top of the tubular product is pressed down, thereby further improving the stability of the tubular product installed in the detection socket 4.
[0023] A spring assembly is provided between the lifting cylinder 9 and the pressing mold 13. The spring assembly includes a sleeve 10, which is fixedly installed at the bottom center of the output end of the lifting cylinder 9. A spring 12 is provided in the inner center of the sleeve 10. A movable rod 11 is connected to the bottom of the spring 12. The top of the movable rod 11 is slidably installed in the inner center of the sleeve 10. The pressing mold 13 is fixedly installed in the bottom center of the movable rod 11. The spring assembly is mainly used to buffer the pressure and prevent the pressing mold 13 from being rigidly connected to the top of the tubular product, which could cause damage to the top of the tubular product.
[0024] In some examples, an elastic sealing ring 7 is provided on the inner bottom of the detection socket 4 to provide a seal. An air pipe 8 is provided at the bottom center of the detection socket 4. The air pipe 8 is connected to the air tightness detection module 2. When the air tightness detection module 2 is activated, air can be supplied to the detection socket 4 through the air pipe 8.
[0025] In some examples, the clamping plate 5 is designed with an arc shape, and anti-slip pads are installed on the clamping surface of the clamping plate 5 to prevent slipping and enhance the stability of the clamping plate 5 when clamping the outer wall of the tubular product.
[0026] In some examples, a top plate 14 is installed at the upper middle part of the support base 3 via a diagonal brace, and a lifting cylinder 9 is fixedly installed at the upper middle part of the top plate 14. The top plate 14 mainly provides stable support for the lifting cylinder 9.
[0027] The working principle of this utility model is as follows:
[0028] During use, the operator first inverts the tubular product to be tested into the test socket 4, then activates the lifting cylinder 9 to push down the pressing mold 13. The pressing mold 13 presses down, making the ends of the tubular product fit tightly against the elastic sealing ring 7, thus achieving a seal. Then, the pushing cylinders 6 on both sides are activated. The pushing cylinders 6 push the clamping plates 5 on both sides towards the center until the tubular product is clamped at both ends, further improving the stability of the tubular product during installation. At this time, the operator can open the airtightness testing module 2 and deliver gas into the tubular product through the air pipe 8 to perform the airtightness test.
[0029] This invention provides a locking component on the detection socket 4 to limit and fix the tubular product, thereby preventing errors and effectively avoiding the situation where the tubular product is sent out during the detection process, which would affect the accuracy of the airtightness test.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An airtightness detection error prevention device, comprising a base (1) and an airtightness detection module (2) installed on the upper right side of the base (1), characterized in that: A locking component is provided on the upper left side of the base (1). The locking component includes a support base (3). A detection socket (4) is provided in the middle of the upper end of the support base (3). Clamping plates (5) are provided on both sides of the upper end of the detection socket (4). The two sets of clamping plates (5) are symmetrically distributed and are driven by a push cylinder (6). A pressing mold (13) is provided in the middle of the upper end of the detection socket (4). A lifting cylinder (9) is provided on the top of the pressing mold (13). The lifting cylinder (9) is used to drive the pressing mold (13) to move up and down.
2. The airtightness detection and error prevention device according to claim 1, characterized in that, An elastic component is provided between the lifting cylinder (9) and the pressing mold (13). The elastic component includes a sleeve (10). The sleeve (10) is fixedly installed at the bottom center of the output end of the lifting cylinder (9). A spring (12) is provided in the inner center of the sleeve (10). A movable rod (11) is connected to the bottom of the spring (12). The top of the movable rod (11) is slidably installed in the inner center of the sleeve (10). The pressing mold (13) is fixedly installed in the bottom center of the movable rod (11).
3. The airtightness detection error prevention device according to claim 2, characterized in that, An elastic sealing ring (7) is provided on the inner bottom of the detection socket (4), and an air tube (8) is provided at the middle of the bottom end of the detection socket (4). The air tube (8) is connected to the airtightness detection module (2).
4. The airtightness detection and error prevention device according to claim 3, characterized in that, The clamping plate (5) is configured with an arc-shaped structure, and an anti-slip pad is installed on the clamping surface of the clamping plate (5).
5. The airtightness detection error prevention device according to claim 4, characterized in that, Both sets of the push cylinders (6) are fixedly installed on the upper surface of the support base (3) and are respectively set on both sides of the detection socket (4).
6. The airtightness detection error prevention device according to claim 5, characterized in that, The upper middle part of the support base (3) is equipped with a top plate (14) by a diagonal brace, and the lifting cylinder (9) is fixedly installed in the upper middle part of the top plate (14).